Kalkules is an universal scientific freeware calculator with an amount of untraditional functions, which can be used particularly by high school or university students. It also offers a wide range of tools, which make your calculations easier and faster.

Features:

• evaluating whole expressions ( ex: 5 + 10 / 3 )
• differentiating functions
• drawing function graphs
• unit conversion
• calculating with real complex or modulo numbers
• calculating in four number systems: binary, octal, decimal, hexadecimal
• calculating with fractions ( ex: 5 / 2 + 1 / 3 = 17 / 6 )
• calculating with polynomials
• drawing Horner schemes
• evaluation history
• unlimited count of brackets in the expression
• wide range of arithmetic goniometric and hyperbolic functions
• using custom-named variables ( ex: radius, volume, ... )
• inserting some of the predefined constants + ability to define your own constants
• inteligent percentage calculations
• and much more...

What´s New in version 1.8:

Improvements:

• Unit converter:
  • Automatic conversion of the input value during editing
  • Automatic selection of the first category after units are loaded
  • Improved form layout (optimized for resizing)
  • Removed Calculate and Close button from the form
• Translations:
  • finished French translation of new texts, unit file and license by Pierre-Yves Baumann
  • finished Russian translation of new texts, constants and basic geometric formulas by Viktor Fyodorov
  • Chineese translation of program texts, basic geometric formulas and unit file by Diqiuyi
  • finished German translation of new texts, unit file and manual by Uwe Reisinger
• Modified layout of several forms to match longer texts in some languages

Fixesd bugs:

• Invalid memory access when editing a constant
• Function arctanh didn´t pass expression control
• Displaying expression change warning icon when the Back button was used